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[jira] [Updated] (FLINK-8322) support getting number of existing timers in TimerService

Date

Wed, 27 Dec 2017 07:14:00 GMT

[ https://issues.apache.org/jira/browse/FLINK-8322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Bowen Li updated FLINK-8322:
----------------------------
Description: We have the use cases where we want to use timers as scheduled threads -
e.g. add a timer to wake up x hours later and do something (reap old data usualy) only if
there's no existing timers, basically we only want at most 1 timer exists for the key all
the time (was: We have the use cases where we want to use timers as scheduled threads - e.g.
add a timer to wake up x hours later and do something (reap old data usualy) only if there's
no existing timers )
> support getting number of existing timers in TimerService
> ---------------------------------------------------------
>
> Key: FLINK-8322
> URL: https://issues.apache.org/jira/browse/FLINK-8322
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Affects Versions: 1.4.0
> Reporter: Bowen Li
> Assignee: Bowen Li
> Fix For: 1.5.0
>
>
> We have the use cases where we want to use timers as scheduled threads - e.g. add a timer
to wake up x hours later and do something (reap old data usualy) only if there's no existing
timers, basically we only want at most 1 timer exists for the key all the time
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